feat: 抽离 imaghe 组件，为图片增加 header

components/coach/ChatMessage.tsx

@@ -1,7 +1,7 @@
+import { Image } from '@/components/ui/Image';
 import { Colors } from '@/constants/Colors';
 import { useColorScheme } from '@/hooks/useColorScheme';
 import { Ionicons } from '@expo/vector-icons';
-import { Image } from 'expo-image';
 import React from 'react';
 import { StyleSheet, Text, TouchableOpacity, View } from 'react-native';
 import Markdown from 'react-native-markdown-display';